Tool-support.



STATES PATENT OFFICE A LGERNON W. MATTHEWS, or HA'VERHILL,MASSACHUSETTS, ASsIGNoR To UNITED SHOE MACHINERY COMPANY, or PATEESON,NEW JERSEY; A coEPoRATIoN or ANEIN JERSEY Toon-SUPPORT.

Supecication ofLetters Patent.

Patented Dee. 31,1912.

Application mea May 2, 1910.. serial No. 558,788.

Toall whom may concern.'

v Be it known that I, ALGERNON WV.' MAT- THEWS, a citizen of the'United'. States, resid- .ing at Haverhill, in the county of Essex andState Lof Massachusetts, have invented certain Improvements inTool-Supports, of jwhich the following description, in connection Withthe accompanying drawing, is a specification, like reference characterson the ldrawing vindicating like partis in the figure. Y

This invention relates to a4 tool support applicable particularly toedge trimming and burnishing machines.

The invention is herein shown appliled to j the shaft of the rand cutterof a heel trimming machine.

the sole or heel edges of boots and shoes toy 2Q upon A'the charactervof the work being op- It is necessary lin trimming or burnishing usetools of different thicknesses depending erated -4upon;l and suchmachines therefore Y v have provision for s upporting'a. variety oftools of differentsizes. -In one constructionV .in general use in rotaryedge trimming machilies,- the cutter isv supported on ascrewthreaded'stud that projects from the end of` the rotary shaft,thestud being long enough to accommodate the thickest cutter, and the'cutteris clamped against the end of 'the shaft by a screw engaging thethreads of' the'stud. If it is desired to use a thin cutter, 'it isnecessary to place one or more washers or collars back of 'the cutter tohold it for- .Ward in clamping relation to the screw-.f

These washers frequently are misplaced; and, 4in any event, theoperation of changing from'one size' of tool toanother with thisarrangement requires considerable time.

In order to' avoid these disadvantages and to produce a more reliableconstruction, the present invention purposes providing a 'tiool supportthat will adjust itself automatlcally to the thickness of the tool. Thenature of this invention will be .clearly understood from the followingde-l scription andthe figure of the accompanying drawing, which isa sideView partly in section of a tool support embodying 'thls invention.

Referring to the drawing, the shaft 2,

' which may be mounted and driven in any i. suitable manner, is providedwith a cylinspring 10 interposed between and projects beyond, the end ofthe latter. .in annular recess-6 is formed in the shaft around the studand extends backward-.ly

from the end of the shaft for a considerable distance.A This recesspreferably` is formed by making the shaft in two sections as indlcated1n the drawing, one sectionconsisting o'f a sleeve a fitted tightly ontoa reducedl portion of the other section b, thus leaving A a recessbetween the. stud 4 and the sleeve;

The two sections are turned ,down to a uniform diameter to adapt theshaft for mounting in suitable bearings.'

cess 6mavbe formed in theend ofk an'integral shaft with the aid of asuitable' tool.

I A tubular sleeve 8 Yittilflg .snugly onto the stud 4 extends into therecess and forms the If desired, the redirect support forthe tool. vThesleeve is pressed outwardly with its end normally projecting beyond theend l'of the' stud by a the bottom of the recess and the inner end ofthe sleeve. In order to preventthe sleeve from turning dinally at 12 anda short screw 14: threaded into a radial aperture in the shaft ispositioned in theslot. The studd-has an axial screw-threaded hole formedin ceive a clampin'gscrew 16;

its end to re- The cutter 18-is placed onthe sleeve y8 with the shield201against its outer end and relative to the shaft it is slottedlongitu-v' the screw 16 is then turned in with its head bearing againstthe outer face of the shieldl until it clamps the cutter firmly againstthe end of the'shaft- 2. The shield pressing upon the end of' the sleeveforces the latter in against the spring 10 until the cutter strikes theend of the shaft'. The drawing shows in full lines the'posiions of theparts with a thickl cutter secured in place. The 'dotted lines in theligure indicate the positions of the parts when a thin cutter is inplace. It

will be obvious thatin each case the sleeve f of the tool used.

The screwlt holds t-he cut-ter against the shaft'with sutiicient'friction to prevent its turning on the sleeve, but if desired, thecutter may be -splined to the sleeve or securedagainst turning in. anyother convenient manner. The distance thatthe stud 4 adjusts itselfautomatically to the thickness .projects beyond the end ofthe shaftpreferautomatically to adjust combination with a shaft, of a tool havinga bore formed therethrough, a ,support entering the bo're of said tool,said support 'that suicient clearance will be leftl thatis to be used soto enof the thinnest cutter inseam coperating with said stud forclamping said45 tool against the end of said shaft.

-r In a machine of th e class described the able the screw ltoclamp anycutter against ,combination of a rotary shafthaving a the' @mi @fiileSima. i

Having described my invention, claim as new and desire to secure byLetters Patent of the United States is l'. lIn a machine of the classdescribed, the

combination with a shaft, of a ltool and a' said tool, said supportbeing carried by the shaft and being constructed and arranged to adjustitself automatically to theA thickness of'the'tool. n

'2. In a machine ofthe class described, the

supportentering being carried by said shaftnand being constructed andarranged toadjust itself auto-y matically tothe thickness ofthe ',tool,and

[means for securingsaid tool to the shaft for l, movement therewith.

3. In a machine of the class described, the combinatioi. withfa shaft,of a tool, a support for said tool, and means for clamping 'the-tool tothe sha-ft, saidsupport being confio ^ ness of the tool,

structed .and mounted to adjust itself automatically to clamping means'and said shaft.'

4; n a-inachine ofthe class described vthe combination with a shaft, ofa -toola device entering said tool and supporting thel saine, saiddevice projecting from the end of the shaft` and being mounted formovement itself to the thick-- and means for clamping said tool againstthe endv of said shaft.

5. 'In a machine of the class described the combination with a rotaryshaft having 'a screw-.threaded stud projecting from' its end,

of a sleeve axially adjustable on said stud and arranged totelescopewithin said shaft, a tool positioned on said sleeve and means.fill the'.v space between said,

.screw-threaded stud proj ectin from its end,

in its eiid'surro-unding said stud, a sleeve eX- tendi'ng into saidrecess and slidable on said stud, a spring interposed between the bottomof said recess and the inner end ,l of said sleeve and means forpreventing said sleeve from turning on said stud. 7. In la machine ofthel class described the combination of arotary shaft comprisinga secion having a concentrically .reducedportionand a cylindrical studprojecting lconcentricallv from the end of said portion,

and another section of tubular form. fitted tightly ontothe redu'cedportion o'f the first section whereby an .annular recess is formedbetween said tubular section and said stud, said stiid having ascrew-threaded hole formed n its end, a sleeve slidably mounted on saidstudoandpartially .positioned in said recess, a-spiing interposedbetweenthe bot-- tom of said recess and the inner'end ofsaid sleeve, saidsleevevliaving a longitudinal slot formed therein, a screw vprojectingthrough said slot to` prevent the'sleeve from tiirning, a rotary cuttermounted on said sleeve, a shield bearing against the outer endof said-cutter and a screw having engagementwith the threads of said stud andhaving its head i bearing against saidr shi'eld'tol clamp the -cutterbetween `the shield and the end of said shaft.

In testimony name to this speciication in thefpresence of twosubscribing witnesses. l

ALGERNON WV. 'lVIAT'IHEVYS Witnesses:

JOHN H. MoCRnAnY,

JAMES R. `HoDDER.

whereof I vhave signed my.

